PS_FST_FFLAG_NONBLOCK
{ O_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
{ KF_FLAG_NONBLOCK, PS_FST_FFLAG_NONBLOCK },
xo_emit("{d:/%s}", fst->fs_fflags & PS_FST_FFLAG_NONBLOCK ?
if (fst->fs_fflags & PS_FST_FFLAG_NONBLOCK)